The main condenser is losing 2" Hg vacuum...

Question 1 of 270705eccefa5bacbc34ba4d4875d

The main condenser is losing 2" Hg vacuum every 5 minutes. In an hour, the absolute pressure will have increased by approximately __________.

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Question 1 of 27070

Q

The main condenser is losing 2" Hg vacuum every 5 minutes. In an hour, the absolute pressure will have increased by approximately __________.

🔍 Key Concepts

• Relationship between inches of mercury (" Hg) and pressure in psia • How a rate of vacuum loss over time converts to a total change in inches of Hg • Approximate conversion: 1 in. Hg ≈ 0.49 psi (verify this value on your steam tables or reference chart)

💭 Think About

• First, figure out how many inches of Hg of vacuum are lost in one hour if the loss is 2" Hg every 5 minutes. • Convert the total inches of Hg change in one hour into psi, using an appropriate conversion factor. • Compare your calculated psi change to the closest answer choice, keeping in mind these are approximate values.

✅ Before You Answer

• Be sure you correctly compute the total vacuum loss in one hour: loss per 5 minutes × number of 5‑minute intervals in an hour. • Use a consistent and correct conversion: in. Hg → psi before matching with the options. • Confirm you are asked for increase in absolute pressure (psia), not gauge pressure or vacuum, and that your final value is in psia.